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文章从手机移动办公的角度出发,介绍了移动办公系统的技术方案及实现,通过系统建设和优化,能有效节约企业办公成本,提高办公效率。 相似文献
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我国建筑能耗呈逐年增长的趋势,暖通空调的能耗在其中占据着很大的比例,暖通空调系统的节能问题在现代社会中备受关注越。暖通空调系统是能源消耗大户,所以节能降耗成为暖通空调系统设计的首要环节。由于暖通空调系统能耗问题逐渐突出,所以探究如何节能减耗时我们必须攻克的难题。本文根据实际暖通空调系统设计中存在的问题,提出控制暖通空调系统能耗产生的一些措施,探讨了暖通空调系统节能设计的一些要点。 相似文献
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In Wireless Mesh Networks (WMNs), the performance of conventional TCP significantly deteriorates due to the unreliable wireless channel. To enhance TCP performance in WMNs, TCP/LT is proposed in this paper. It introduces fountain codes into packet reorganization in the protocol stack of mesh gateways and mesh clients. Furthermore, it is compatible with conventional TCP. Regarded as a Performance Enhancement Proxies (PEP), a mesh gateway buffers TCP packets into several blocks. It simultaneously processes them by using fountain encoders and then sends them to mesh clients. Apart from the improvement of the throughput of a unitary TCP flow, the entire network utility maximization can also be ensured by adjusting the scale of coding blocks for each TCP flow adaptively. Simulations show that TCP/LT presents high throughput gains over single TCP in lossy links of WMNs while preserving the fairness for multiple TCPs. As losses increase, the transmission delay of TCP/LT experiences a slow linear growth in contrast to the exponential growth of TCP. 相似文献
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